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Troubleshooting
- Embedded checkouts in WooCommerce
- Checkout blocks in WooCommerce
- Error codes
- Compatible plugins and themes
- Known compatibility issues
- Files to exclude from optimization
- Shipping Methods in iframe
- FAQ
- Optimizing your checkout when using an Iframe-based checkout
- Callbacks
- Troubleshooting the checkout flow
- Troubleshooting the Pay for order/Hosted Payment Page flow
- Troubleshooting WooCommerce Subscriptions and KCO
- Klarna Developer logs
- Pending payment orders and held stock
Klarna support information
Additional Klarna plugins
Compatible plugins and themes
Here you will find a list of plugins that we have confirmed compatible with Klarna Checkout for WooCommerce.
Please note that these are third party plugins and that a change out of our control can result in the plugins not being compatible for a period of time.
Klarna Checkout uses its own template file for displaying the checkout page and should work with most themes. However, the plugin is only regularly tested with the Storefront theme and use the Astra WordPress theme on the plugin demo site. We do not guarantee that it will work with other themes. Common situations when errors occur are:
- Themes/plugins with customized template files for WooCommerce checkout page.
- Themes/plugins that modifies the checkout into a multi step checkout.
Krokedil and Klarna do not offer help with adapting your theme or plugin within regular support.
We always try to make our plugins compatible with as many other plugins and set-ups as possible, but depending on code outside of our control in other plugins, we can not always enable compatibility. For this we have a section for known compatibility issues
Below is a list of compatible plugins.
Google Analytics / E-commerce tracking
- Enhanced Ecommerce Google Analytics Plugin for WooCommerce
Confirmed compatible for the Google Analytics functions. The functions for Google AdWords and Google Shopping are not tested. - Google Tag Manager for WordPress
Good resources to start with is how to setup Enhanced E-commerce tracking and the rest of the How To articles around the plugin and Google Tag Manager. - MonsterInsights Pro & E-Commerce addon
Gift Cards
Good to know: It looks like orders containing PW WooCommerce Gift Cards have problems when refunding the whole initial order amount. This is NOT a problem with Klarna Checkout specific as it is the same problem with other payment ways such as bank transfer etc.
Use this snippet to show the “Send coupons to…” or “Your order contains coupons…” box for Smart Coupons in the checkout for Klarna Checkout for WooCommerce:
add_action( 'kco_wc_after_order_review', 'kco_show_giftcard_apply' );
function kco_show_giftcard_apply() {
do_action( 'woocommerce_review_order_before_submit' );
}Use this snippet to show the “Have a gift card?” box for YITH WooCommerce Gift Cards in the checkout for Klarna Checkout for WooCommerce:
add_action('kco_wc_after_order_review', 'custom_add_smart_coupon_field');
function custom_add_smart_coupon_field() {
do_action('woocommerce_review_order_before_payment');
}Multi-currency
- Aelia Currency Switcher for WooCommerce
- Aelia Tax Display by Country for WooCommerce
- WooCommerce Multilingual – run WooCommerce with WPML
- WOOCS – WooCommerce Currency Switcher